Japan



stares eaten? caries.

HARRY GHISLET, OF SCHENEC'IADY, NEW YORK, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A. CORPORATION OF NEW YORK.

JAPAN.

No Drawing.

To all whom t may concern Be it known that I, HARRY'CHIsLn'r, a citizen of the United States, residin at Schenectady, county of Schenectady, tate of New York, have invented certain new and useful Improvements in J apans, of

- which the following is a specification.

constituting Water japan to render the emulsion more permanent.

For example, to a apan comprislng an emulslon m an ammomacal solution of apan base comprising asphaltic material and a drying oil is added a solution of elatin, for example, glue of animal origin. '%or example, a solution of glue is prepared by treating one part of glue with four parts ofwater until a uni-' form solution is obtained. This gllfie solu- .ion preferably is added after t base has been emulsified but it may if desiredbeladded before emulsification. The.

proportion of glue solution to the water japan may be varied within wide limits. For example, to a water japanmade by emulsifying five gallons of japanbase in Specification of Letters Patent.

e japan Patented Nov. 2, 1929.

Application filed July 11, 1919. Serial No. 310,114;

ten gallons of water containin one-half gallon of ammonia of 0.9 speci c gravity, there is added about 10 to 20% of glue solution by volume. Other colloids, as, for example, starch, a ar or water glass can be similarly used. The colloid, in my opinion, acts as a protective agent by forming a coating over the surface of the droplets of the japan base in the emulsion thus tending to prevent the access of carbon dioxid of the air, which under certain conditions produces scumming of the apan emulsion.

A water japan prepared with the addition of glue is applied to objects to be coat ed in the usual manner as either by dipping the objects, prefe'rablywhile hot, into thejapan, by electrical cataphoresis, or 'by.

painting the emulsion on the objects. The coated objects are then dried in the usual manner.

The addition of the glue improves not only the adhesion of the product but also improves the appearance, durability and fiexibilit of the finished product.

at claim as new and desire to secure by Letters Patent of the United States, is,--

1. A composition of matter comprising an emulsion in water of japan-forming ma.-

.terial and a non-oleaginous colloid acting to reduce scumming.

2. A water-japamcontaining a gelatinous colloid.

3. A japan comprisin an emulsion in water of asphaltic an oleaginous materials and containin lue.

In witness whereo have hereunto set my hand this 10th do. of July 1919.

. RRY oHIsLE'n 

